luckadjusted

Week 9 2025 · November 2, 2025

Vikings at Lions, Week 9 2025: who deserved to win?

The Vikings beat the Lions 27–24 and were the better team on the day: replayed with the same form, they win 8 of 10. The Lions had the bounces: drops alone were worth 2.5 points to the Lions.

An off day for the Lions: their offense played far below its usual level. In a fresh game against the Vikings they would win 74% of the time; with this day’s form, 24%. The numbers

Before kickoff the Lions were 76% favorites. The biggest swing (Q2, 1:54 left): Illegal Contact on the Lions (Amik Robertson), 5 yards, wiping out the play, worth 20 points of win probability to the Vikings.

Final

Minnesota Vikings 27
Detroit Lions 24

November 2, 2025 · Ford Field · Closing line: Lions −9.5

Luck index +24 Vikings about even · −24 Lions

Each team’s own plays from this game, resampled into new drives 4,000 times: with the way both teams actually played, how often does this performance win? How the replay works

Ten replays. Vikings win 8, Lions win 2.

  1. 1 MIN 37 DET 7
  2. 2 MIN 26 DET 5
  3. 3 MIN 34 DET 17
  4. 4 MIN 33 DET 20
  5. 5 MIN 17 DET 7
  6. 6 MIN 26 DET 19
  7. 7 MIN 23 DET 19
  8. 8 MIN 24 DET 22
  9. 9 MIN 6 DET 10
  10. 10 MIN 9 DET 23

Three other ways to ask

Each answers a different question, so none of them replaces the replay above.

The closing betting line, turned into a probability. What everyone knew before the game.

The line plus what this game showed, weighted by how much one game can tell. It stays close to the line because one game says little.

Every kick, fumble bounce, drop, conversion and judgment call redrawn; everything else fixed. The narrowest view of luck.

An off day for the Lions

Their offense played far below its usual level. In a fresh game against the Vikings they would win 74% of the time; with this day’s form, 24%.

49 points apart for the Lions: the gap is how differently this game went from what the two teams usually are.

UnitThis gameUsual levelBetter or worse than usual
Vikings offenseEPA per play gained +0.09 +0.09 better by 0.01
Vikings defenseEPA per play allowed +0.03 +0.08 better by 0.05
Lions offenseEPA per play gained +0.03 +0.19 worse by 0.17
Lions defenseEPA per play allowed +0.09 +0.08 worse by 0.01

EPA (expected points added) per play on competitive snaps, turnovers left out because they are valued as luck. Usual level: the team’s earlier games this season plus half of last season, pulled toward the league average. One team’s defense and the other team’s offense are the same snaps, so one game can’t fully say whose day it was; it shows how far this one was from both teams’ norms.

How 4,000 replays ended

Vikings win 76% of them, Lions 24%, counting the 4% still level after regulation as half each. The line is what actually happened: Vikings by 3.

Show as a table
Final margin in the replaysShare of replays
Vikings by 17+25.2%
Vikings by 9–1622.9%
Vikings by 1–824.3%
Level after regulation3.5%
Lions by 1–814.2%
Lions by 9–167.0%
Lions by 17+2.9%

Where the luck was

Take the luck out

The final margin was Vikings by 3. Remove the luck, one kind at a time, and it becomes Lions by 8.8.

Each row takes one kind of luck out of the margin. Color shows which team it helped. Luck shares are the fitted ones (how much of each component is luck).

The kicks

How likely each kicker was to make that kick (his own record, the distance and the weather), and what happened.

  • W. Reichard, 50 yds made · 75% expected
  • J. Bates, 41 yds made · 88% expected
  • J. Bates, 45 yds blocked · 83% expected
  • W. Reichard, 20 yds made · 100% expected
Bar: expected chance of a make. Filled dot: made. Open dot: missed or blocked.

When it happened

Lions’ chance of winning

As low as 0% and as high as 70%. Numbers mark the biggest luck moments, listed below.

nflfastR’s in-game win probability. It ignores the betting line, so it starts near even. Shaded above the middle while the Lions were ahead in it, below while the Vikings were.
#WhenWhat happenedWin probability forNext drive
1 Q1 12:51 The Lions converted 4th & 43rd & 4th downs · 43% expected +16% DET DET: Touchdown
2 Q2 9:43 The Lions converted 4th & 13rd & 4th downs · 65% expected +14% DET DET: Touchdown
3 Q2 1:54 Illegal Contact on the Lions (Amik Robertson), 5 yards, wiping out the playJudgment calls · 10 flags in 2683 snaps before, position avg 1 per 213 +20% MIN MIN: Turnover
4 Q2 0:51 The Vikings were stopped on 3rd & 113rd & 4th downs · 25% expectedThe Vikings were intercepted on a well-placed throwInterceptions · 0% expected to stay out of the defense's hands +19% DET MIN: End of half
5 Q3 2:07 The Lions converted 3rd & 143rd & 4th downs · 21% expected +11% DET DET: Field goal
6 Q4 10:37 The Lions converted 4th & 23rd & 4th downs · 58% expected +16% DET DET: Missed field goal
7 Q4 7:09 The Lions were stopped on 3rd & 143rd & 4th downs · 21% expectedFalse Start on the Lions, 5 yardsPre-snap flags +12% MIN DET: Missed field goal
8 Q4 6:29 J. Bates had a 45-yard field goal blockedKicks · 83% expected for him, 13 of 19 from 45+ before +12% MIN DET: Touchdown

Missing players

Key players (usually on the field for half the snaps or more) who missed this game or part of it, valued by position and quality. The same players are missing in every replay, so this counts as luck in points only.

  • Kerby Joseph (DET S), out · 0.8 pts
  • D.J. Reed (DET CB), out (IR) · 0.6 pts
  • Marcus Davenport (DET DE), out (IR) · 0.3 pts
  • Carson Wentz (MIN QB), out (IR), replaced by j.mccarthy · 2.6 pts

Adjust the assumptions

Disagree with how much of a fumble bounce or a pass interference call is luck? Change it and the coin-flip replay reruns in your browser.

Only coin-flips re-rolled

Vikings 12% · Lions 88%

Final margin
Vikings by 3
Luck in points
11.8 for the Vikings
Luck-adjusted margin
Lions by 8.8
Replay with same day's form
Vikings 76% · Lions 24% unchanged: why
How much of each is luck?

0% treats it as skill, 100% as pure luck. The tick is our fit.

What counts

We tested momentum on 19,000 lucky breaks and found none, so it's off by default. Why

Flip a play

Force the other outcome, in this game and in every replay: a made kick becomes a miss, a stop becomes a conversion, a flag goes the other way.

About these numbers

Play-by-play and win probability from nflfastR via nflverse; kicks valued against each kicker’s own record; drops and interception-worthy throws from FTN charting; injuries from snap counts and injury reports.

Methodology and validation · All Week 9 2025 games · Vikings · Lions

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